Protective cover arrangement structure and protective cover removal prevention tool

Abstract

To prevent removal of a protective cover while flexibly responding to differences in the size and shape of the protective cover.SOLUTION: A curved corner protective cover 21 connected to a straight protective cover 11 is disposed on an installation surface A of a corner part 2. The corner protective cover 21 is disposed on the installation surface A with an extension body stored and covered therein, by engaging and connecting a first cover component and a second cover component. An engagement connection correspondence portion 5 corresponding to an engagement connection part between the first cover component and the second cover component is set on a part of an outer surface part of the corner protective cover 21. On the outer surface part of the corner protective cover 21, a protective cover removal prevention tool 4 is provided which is disposed on the installation surface A while contacting the engagement connection correspondence portion.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a protective cover arrangement structure for arranging a protective cover for protecting an extension body such as a pipe or a joint on an installation surface, and to a protective cover removal stopper for preventing the protective cover from coming off. [Background technology]

[0002] When an extension body such as a pipe such as a water supply pipe or a hot water supply pipe or a joint that connects pipes together is arranged along an installation surface such as a wall or floor, a protective cover is arranged along the installation direction of the extension body to protect the extension body (see, for example, Patent Document 1). In Patent Document 1, the protective cover is provided with a base portion that is installed on the installation surface and supports the extension body on its upper portion, and a lid portion that covers the periphery of the extension body supported on the base portion.

[0003] When an extension body is arranged along an installation surface, not only is the extension body such as a pipe arranged in a straight line, but there is also a corner portion where the extension body such as a joint is arranged in a bent shape as needed. At this corner portion, for example, if the extension body such as a joint moves due to thermal expansion or contraction of the pipe, a load is applied to the protective cover, which may cause the protective cover to come off or become deformed.

[0004] Therefore, in Patent Document 1, a holder is provided to hold the protective cover in order to prevent the protective cover from coming off or moving, etc. The holder includes a holder main body formed in a U-shape that straddles the protective cover, and fixing parts that fix both ends of the holder main body to the installation surface using fixing parts such as screws. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 6118626 Summary of the Invention [Problem to be solved by the invention]

[0006] In Patent Document 1, the holder main body abuts against the entire upper surface of the protective cover and presses down on the entire upper surface of the protective cover, thereby preventing the protective cover from coming off, etc. However, because the holder main body abuts against the entire upper surface of the protective cover, if the height or shape of the protective cover relative to the installation surface changes, the height and shape of the holder main body relative to the installation surface must also be changed.

[0007] Therefore, the holder in Patent Document 1 has difficulty in dealing with different sizes and shapes of protective covers. For example, it is necessary to prepare dedicated holder bodies that correspond to the sizes and shapes of protective covers, which increases the number of different sizes and shapes of holders, making them difficult to handle and also increasing manufacturing costs.

[0008] In view of this situation, the main object of the present invention is to provide a protective cover arrangement structure and a protective cover removal stopper that can flexibly accommodate differences in the size and shape of the protective cover while preventing the protective cover from coming off. [Means for solving the problem]

[0009] A first characteristic configuration of the present invention is a protective cover arrangement structure at a corner portion in which a protective cover that protects an extension body is arranged in a bent shape on an installation surface, A curved corner protective cover connected to the straight protective cover is disposed on the installation surface of the corner portion, The corner protection cover is disposed on an installation surface in a state where the extension body is housed and covered therein by engaging and connecting a first cover component and a second cover component, an engaging and connecting corresponding portion corresponding to an engaging and connecting portion between the first cover component and the second cover component is set in a part of an outer surface portion of the corner protection cover, The corner protective cover has an outer surface provided with a protective cover stopper that is disposed on the installation surface in a state of contact with the corresponding engaging and connecting portion.

[0010] According to this configuration, the protective cover stopper abuts against an engagement connection corresponding portion set on a part of the outer surface of the corner protective cover, so that the protective cover stopper can hold down the portion corresponding to the engagement connection portion between the first cover component and the second cover component. For example, even if a joint or the like moves due to thermal expansion or contraction of a pipe or the like serving as an extension body, and a load is applied to the corner protective cover, relative movement between the first cover component and the second cover component at the engagement connection portion between the first cover component and the second cover component can be prevented. As a result, movement of the first cover component or the second cover component toward the side that releases the engagement connection can be prevented, and the engagement connection between the first cover component and the second cover component can be maintained, preventing the corner protective cover from coming off.

[0011] Furthermore, the protective cover removal stopper only needs to abut against the corresponding engagement and connection portion set on a part of the outer surface of the corner protective cover, so even if the size or shape of the corner protective cover changes, it can be accommodated without requiring a major change in size or shape of the protective cover removal stopper, and the same protective cover removal stopper can abut against the corresponding engagement and connection portion. Thus, it is possible to flexibly accommodate differences in the size and shape of the protective cover while preventing the protective cover from coming off.

[0012] A second characteristic configuration of the present invention is that the corner protective cover includes the first cover structure disposed between the extension body and the installation surface, and the second cover structure covering a portion other than the portion between the extension body and the installation surface, the second cover component is configured to be engageable with the first cover component from an outer side to an inner side of a lateral side portion extending in a direction intersecting with the installation surface, The engaging and connecting corresponding portion is set on a part of a side surface portion of the outer surface of the corner protection cover that extends in a direction intersecting with the installation surface.

[0013] According to this configuration, the second cover component can be freely engaged with the first cover component from the outer side to the inner side of the lateral side portion extending in a direction intersecting the installation surface, so that if movement of the second cover component to the outer side of the lateral side portion of the first cover component can be prevented, the engaged connection between the first cover component and the second cover component can be maintained. Therefore, according to this configuration, the engaging and connecting corresponding portion is set on a part of the side portion extending in a direction intersecting with the installation surface on the outer surface of the corner protective cover, and the protective cover removal stopper is disposed on the installation surface in a state of abutting against the engaging and connecting corresponding portion. As a result, by pressing the engaging and connecting corresponding portion with the protective cover removal stopper, it is possible to restrict movement of the second cover component outward on the lateral side portion of the first cover component, and it is possible to appropriately maintain the engaging and connecting between the first cover component and the second cover component and appropriately prevent the corner protective cover from coming off.

[0014] A third characteristic feature of the present invention is that the protective cover stopper is provided in a state of contact with the entire area of ​​the engaging and connecting corresponding portion.

[0015] According to this configuration, the protective cover anti-detachment device abuts against the entire area of ​​the engaging and connecting corresponding portion, and therefore, it is possible to restrict the movement of the second cover component outward at the lateral side portion of the first cover component over the entire area of ​​the engaging and connecting corresponding portion, thereby properly maintaining the engaging and connecting between the first cover component and the second cover component and properly preventing the corner protective cover from coming off.

[0016] A fourth characteristic feature of the present invention is that the protective cover stopper is provided with a positioning portion that engages with the corner protective cover and positions it at an abutment position where it abuts against the engaging and connecting corresponding portion.

[0017] According to this configuration, the protective cover removal device can be positioned at the abutment position by the positioning portion, so that the position of the protective cover removal device relative to the abutment position can be smoothly and easily adjusted. Moreover, the protective cover removal device positioned at the abutment position can be fixed at the abutment position simply by fixing the protective cover removal device positioned at the abutment position to the installation surface using fixing devices such as screws, which simplifies the fixing work.

[0018] The fifth characteristic configuration of the present invention is that one end of the protective cover anti-detachment device is provided with an extension amount reduction portion that reduces the extension amount of the extension portion that extends laterally outward more than other portions.

[0019] Because the corner protective cover is formed in a curved shape, one end and the other end of the corner protective cover may be adjacent to each other in the direction of the extension body. In such a case, if an attempt is made to install protective cover removal stoppers at each end of the corner protective cover in the direction of the extension body, it may be impossible to secure sufficient installation space, resulting in problems such as the protective cover removal stoppers interfering with each other, and making it impossible to install each protective cover removal stopper in a position where it abuts against the corresponding engagement connection portion.

[0020] Therefore, according to this configuration, one end of the protective cover removal stopper is provided with an extension amount reduction portion that reduces the extension amount of the extension portion that extends laterally outward relative to the other portions, so that the required installation space is reduced by the amount of the reduction in the extension amount by the extension amount reduction portion. Therefore, even if protective cover removal stoppers are to be installed at one end and the other end of the corner protective cover in the installation direction of the extension body, interference between the protective cover removal stoppers can be suppressed, and the protective cover removal stopper at one end of the corner protective cover and the protective cover removal stopper at the other end of the corner protective cover can be installed in adjacent abutting positions.

[0021] A sixth characteristic configuration of the present invention is a protective cover removal stopper that prevents a curved corner protective cover connected to a straight protective cover from being removed, The corner protection cover is disposed on an installation surface in a state where the extension body is housed and covered therein by engaging and connecting a first cover component and a second cover component, an engaging and connecting corresponding portion corresponding to an engaging and connecting portion between the first cover component and the second cover component is set in a part of an outer surface portion of the corner protection cover, The corner protection cover has an outer surface provided with a stopper body disposed on the installation surface in a state of contact with the corresponding engaging and connecting portion.

[0022] According to this configuration, the stopper body abuts against an engagement / connection corresponding portion set on a part of the outer surface of the corner protective cover, so that the stopper body can hold down the portion corresponding to the engagement / connection portion between the first cover component and the second cover component. For example, even if a joint or the like moves due to thermal expansion or contraction of a pipe or the like serving as an extension body, and a load is applied to the corner protective cover, relative movement between the first cover component and the second cover component at the engagement / connection portion between the first cover component and the second cover component can be prevented. As a result, movement of the first cover component or the second cover component toward the side that releases the engagement / connection can be prevented, and the engagement / connection between the first cover component and the second cover component can be maintained, preventing the corner protective cover from coming off.

[0023] Furthermore, the stopper body only needs to abut against the corresponding engaging and connecting portion set on a part of the outer surface of the corner protective cover, so even if the size or shape of the corner protective cover changes, it can be accommodated without requiring a major change in size or shape of the protective cover stopper, and the same protective cover stopper can abut against the corresponding engaging and connecting portion. Thus, it is possible to flexibly accommodate differences in the size and shape of the protective cover while preventing the protective cover from coming off. [Brief explanation of the drawings]

[0024] [Figure 1] FIG. 10 is a plan view showing the protective cover arrangement structure of the protective cover arranged on the installation surface; [Figure 2] Cross-sectional view showing the arrangement structure of the corner protection cover [Figure 3] Cross-sectional view showing the arrangement structure of the straight-line protective cover [Figure 4] A bottom view showing the corner protective cover and the protective cover removal stopper as seen from below the installation surface. [Figure 5] (A) is a perspective view of the protective cover removal stopper seen from diagonally above, (B) is a perspective view of the protective cover removal stopper seen from diagonally below, (C) is a front view of the protective cover removal stopper, and (D) is a rear view of the protective cover removal stopper. [Figure 6] (A) is a left side view of the protective cover stopper, (B) is a right side view of the protective cover stopper, (C) is a plan view of the protective cover stopper, and (D) is a bottom view of the protective cover stopper. [Figure 7] FIG. 10 is an exploded perspective view showing the installation state of the protective cover stopper; [Figure 8] Cross-sectional view showing a protective cover removal stopper and a spacer for the removal stopper [Figure 9] FIG. 10 is a perspective view showing a protective cover arrangement structure of a protective cover arranged on an installation surface in a second embodiment; [Figure 10] FIG. 10 is a plan view showing a protective cover arrangement structure of a protective cover arranged on an installation surface in a third embodiment; [Figure 11] FIG. 10 is a cross-sectional view showing a protective cover installation structure of a protective cover installed on an installation surface in a fourth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0025] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A protective cover arrangement structure and a protective cover removal stopper according to an embodiment of the present invention will be described with reference to the drawings.

[0026] [First embodiment] The protective cover arrangement structure according to the present invention is a protective cover arrangement structure at a corner portion 2 in which a protective cover 1 is arranged in a bent shape relative to an installation surface A such as a wall surface or a floor surface, as shown in Fig. 1. Fig. 1 shows a plan view of the protective cover 1 arranged at the corner portion 2 when the flat installation surface A is viewed from above.

[0027] As shown in FIG. 1, the corner portion 2 is provided with protective covers 1 that protect the extension bodies 3 (see dotted lines in FIG. 2 and FIG. 3), including two straight line protective covers 11 extending linearly along the arrangement direction C of the extension bodies 3 and one corner protective cover 21 extending in a curved manner along the arrangement direction C of the extension bodies 3. Both end portions of the corner protective cover 21 are disposed on the installation surface A in a state where they fit over the straight line protective covers 11. Incidentally, an example is shown in which a pipe 31 serving as the extension body 3 is disposed within the straight line protective cover 11, as shown in FIG. 3, and a joint 32 serving as the extension body 3 is disposed within the corner protective cover 21, as shown by the dotted line in FIG. 2, but the type of extension body 3 to be disposed can be changed as appropriate.

[0028] For example, one straight line protective cover 11 is arranged on the installation surface A along the arrangement direction C of the extension body 3, the other straight line protective cover 11 is arranged on the installation surface A so as to extend in a direction intersecting the extension direction of the first straight line protective cover 11, and a corner protective cover 21 is arranged on the installation surface A so as to connect between the two straight line protective covers 11, thereby arranging the protective cover 1 in a continuous curved shape on the installation surface A.

[0029] In Fig. 1, the corner protective cover 21 is formed in a right-angled shape, being bent at a substantially right angle. The angle and shape of the bent corner protective cover 21 are not limited to the right-angle shape shown in Fig. 1 and can be changed as appropriate depending on the installation situation, for example, to an arc-shaped curve.

[0030] The extension body 3 can be, for example, a pipe 31 or a joint 32 made of synthetic resin or metal. For example, it can be a hot water pipe, a water supply pipe, a drain pipe, a refrigerant pipe, or a joint that connects them. In addition, a covering material made of, for example, a synthetic resin insulating material can be provided around the pipe or joint.

[0031] As shown in Figure 3, the straight line protective cover 11 is provided with a straight line base portion 12 that is arranged between the extension body 3 and the installation surface A (below the extension body 3 in Figure 3) to support the extension body 3, and a straight line cover body 13 that covers the area other than between the extension body 3 supported by the straight line base portion 12 and the installation surface A (the left and right sides and upper side of the extension body 3 in Figure 3).

[0032] 3, the direction perpendicular to the installation surface A is the up-down direction of the extension body 3, and the direction along the installation surface A is the left-right direction of the extension body 3. Therefore, hereinafter, directions are defined based on the extension body 3, the side away from the installation surface A in the direction perpendicular to the installation surface A is referred to as the "upper side," the side approaching the installation surface A in the direction perpendicular to the installation surface A is referred to as the "lower side," and the direction perpendicular to the arrangement direction C of the extension body 3 and along the installation surface A is referred to as the "left-right direction."

[0033] As shown in Fig. 3, the linear base portion 12 is formed in a plate shape extending in the left-right direction and is fixed to the installation surface A using fasteners such as screws. A first base-side engaging portion 14 recessed outward in the left-right direction and a second base-side engaging portion 15 recessed inward in the left-right direction are provided at both left and right ends of the linear base portion 12. The first base-side engaging portion 14 and the second base-side engaging portion 15 are continuously arranged over the entire length of the linear base portion 12 in the extension direction (the arrangement direction C of the extension body 3, the perpendicular direction to the paper surface in Fig. 3) with the first base-side engaging portion 14 positioned below the second base-side engaging portion 15 and aligned in the vertical direction.

[0034] 3, the linear base portion 12 is provided with an extension body support 16 that fits into the outer periphery of the extension body 3 to support the extension body 3. The extension body support 16 is provided with legs 17 that extend downward from both the left and right sides from a portion that fits into the outer periphery of the extension body 3, and the legs 17 are engaged and connected to the first base-side engaging portions 14 of the linear base portion 12. For example, a plurality of extension body supports 16 are provided at intervals in the extension direction of the linear base portion 12, and by fitting into the outer periphery of the extension body 3, the extension body 3 can be supported in a stable posture with movement in the up-down and left-right directions restricted.

[0035] As shown in Fig. 3, the straight line covering body 13 is formed in an inverted U shape that covers the left, right, and upper sides of the extension body 3, and constitutes the curved upper surface portion of the straight line protective cover 11, and both side surfaces extending from both sides of the upper surface portion perpendicular to the installation surface A. The lower end portions on both the left and right sides of the straight line covering body 13 are provided with straight line covering body side engaging portions 18 that protrude inward from the side surfaces of the straight line protective cover 11. The straight line base portion 12 and the straight line covering body 13 are engaged and connected by engaging the straight line covering body side engaging portions 18 with the second base side engaging portions 15.

[0036] As shown in Fig. 2, the corner protective cover 21 includes a corner base portion 22 disposed below the extension body 3 (see the dotted line in Fig. 2), and a corner covering body 23 that covers the left, right, and upper sides of the extension body 3. The corner base portion 22 and the corner covering body 23 are formed in a curved shape that is bent at a substantially right angle in a plan view, and the corner protective cover 21 is configured by combining the corner base portion 22 and the corner covering body 23.

[0037] 2, the corner base portion 22 is formed in the shape of a plate extending in the left-right direction, and is fixed to the installation surface A using fasteners such as screws. The left and right ends of the corner base portion 22 are provided with corner base-side engaging portions 24 that are recessed into the inside of the extension body 3 in the left-right direction.

[0038] 2, the corner covering body 23 is formed in an inverted U shape that covers the left, right, and upper sides of the extension body 3, and constitutes the curved upper surface of the corner protective cover 21, and both side surfaces that extend from both sides of the upper surface perpendicular to the installation surface A. The lower end portions on both the left and right sides of the corner covering body 23 are provided with corner covering body-side engaging portions 25 that protrude inward from the side surfaces of the corner protective cover 21.

[0039] 2, the corner base-side engaging portion 24 and the corner cover-side engaging portion 25 are configured to be freely engageable and connectable. By engaging and connecting the corner base-side engaging portion 24 and the corner cover-side engaging portion 25, the corner base portion 22 (corresponding to the first cover component) and the corner cover 23 (corresponding to the second cover component) form the corner protective cover 21 that houses the extension body 3 therein and covers the periphery of the extension body 3.

[0040] As shown in Fig. 2, the corner base-side engaging portion 24 is concave and recessed inward in the left-right direction, while the corner cover-side engaging portion 25 is convex and protrudes inward in the left-right direction. This allows the corner base-side engaging portion 24 and the corner cover-side engaging portion 25 to be engaged and connected by moving the corner cover-side engaging portion 25 toward the corner base-side engaging portion 24 from the outside in the left-right direction of the extension body 3. The corner cover 23 can be engaged with the corner base portion 22 from the outside to the inside of the lateral portion extending in a direction intersecting the installation surface A. As shown by the arrow in Fig. 2, the engagement direction when the corner base-side engaging portion 24 and the corner cover-side engaging portion 25 are engaged and connected is from the outside to the inside of the corner protective cover 21 along the installation surface A.

[0041] Unlike the straight line protective cover 11, the corner protective cover 21 does not support the extension body 3 in a state where it fits onto the outer periphery of the extension body 3 with the extension body support 16. Therefore, if the extension body 3 moves due to, for example, thermal contraction of the extension body 3, a load is applied to the corner protective cover 21, which may cause the corner protective cover 21 to come off. Therefore, as shown in Figure 1, a protective cover stopper 4 is disposed on the installation surface A to prevent the corner protective cover 21 from coming off.

[0042] As shown in Figure 2, corner protective cover 21 engages and connects corner base portion 22 and corner cover 23 by engaging and connecting corner base-side engaging portion 24 and corner cover-side engaging portion 25. Corner cover 23 can freely engage with corner base portion 22 from the outer side to the inner side of the lateral side extending in a direction intersecting with installation surface A, so if movement of corner cover 23 can be restricted in the direction opposite to the engagement direction (see arrow in Figure 2), the engagement and connection between corner base portion 22 and corner cover 23 can be maintained and corner protective cover 21 can be prevented from coming off.

[0043] Therefore, as shown in Figure 2, an engaging and connecting corresponding portion 5 corresponding to the engaging and connecting portion between the corner base portion 22 and the corner cover body 23 is set on a part of the outer surface of the corner protective cover 21, and a protective cover slip-off stopper 4 is arranged on the installation surface A in a state where it abuts against the engaging and connecting corresponding portion 5.

[0044] 2, the engaging and connecting corresponding portion 5 is a portion on the outer surface of the corner protective cover 21 that corresponds to the location of the corner base-side engaging portion 24 and the corner cover-side engaging portion 25. Since the corner base-side engaging portion 24 and the corner cover-side engaging portion 25 are arranged in portions of the corner protective cover 21 that correspond to parts of the side surface extending in a direction perpendicular to the installation surface A, the engaging and connecting corresponding portion 5 is set in part of the side surface of the corner protective cover 21 (part of the side surface extending in a direction perpendicular to the installation surface A).

[0045] For example, the engaging and connecting corresponding portion 5 can be set on the side of the corner protective cover 21 in the range from the lower end to the upper end of the corner base-side engaging portion 24 and the corner cover-side engaging portion 25 in the direction perpendicular to the installation surface A, as shown in Fig. 2, and also in the range where the corner cover-side engaging portion 25 is disposed in the extension direction of the corner protective cover 21 (direction C of the extension body 3), as shown in Fig. 4. Incidentally, Fig. 4 shows a bottom view seen from below the installation surface A, but some components such as the corner base portion 22 are omitted in the illustration so that the positional relationship between the corner cover-side engaging portion 25 and the protective cover slip-off stopper 4 can be seen.

[0046] As shown in Figures 2 and 4, the protective cover anti-detachment device 4 includes an anti-detachment device main body 41 that abuts against an engaging connection corresponding portion 5 set on a part of the side surface of the corner protective cover 21. As shown in Figures 2, 5(A), and (B), the anti-detachment device main body 41 has a first extension portion 42 extending in a direction perpendicular to the installation surface A, and a second extension portion 43 extending from the lower end portion of the first extension portion 42 along the installation surface A, and as shown in Figures 2, 6(A), and (B), is formed in a substantially L-shape when viewed in the arrangement direction C of the extension body 3 (see Figure 1). The shape of the anti-detachment device main body 41 is not limited to an L-shape, and various other shapes such as a triangular shape or a sector shape can also be used.

[0047] 2, the first extension portion 42 is disposed on the side approaching the corner protective cover 21, and the second extension portion 43 is disposed on the side away from the corner protective cover 21. The surface portion of the first extension portion 42 opposite the second extension portion 43 is formed in a flat surface shape (see FIGS. 5(B) and 6(D)) facing the side portion of the corner protective cover 21, and forms an abutting surface portion 44 that abuts against the engaging and connecting corresponding portion 5 set in part of the side portion of the corner protective cover 21.

[0048] As shown in FIG. 2 , the contact surface 44 of the first extension portion 42 extends from the lower end of the corner protective cover 21 in a direction perpendicular to the installation surface A to above the upper ends of the corner base-side engaging portion 24 and the corner cover-side engaging portion 25, and is capable of contacting the entire area of ​​the set engagement / connection corresponding portion 5 in the direction perpendicular to the installation surface A. Incidentally, the contact surface 44 is not limited to an orthogonal surface extending in a direction perpendicular to the installation surface A. For example, it may be an inclined surface inclined at a predetermined angle relative to the direction perpendicular to the installation surface A. The angle and shape of the surface can be changed as long as it is capable of contacting the set engagement / connection corresponding portion 5. Furthermore, although the contact surface 44 is configured to contact the entire area of ​​the set engagement / connection corresponding portion 5, it may also contact only a portion of the set engagement / connection corresponding portion 5.

[0049] 4, the contact surface 44 of the first extension portion 42 is provided over substantially the entire length of the range in which the corner cover body side engaging portion 25 is arranged in the extension direction of the corner protective cover 21 (arrangement direction C of the extension body 3), and is provided so as to be able to contact the entire area of ​​the set engaging and connecting corresponding portion 5 in the extension direction of the corner protective cover 21 (arrangement direction C of the extension body 3).As a result, the contact surface 44 of the protective cover loss prevention device 4 is provided so as to be able to contact the entire area of ​​the set engaging and connecting corresponding portion 5.

[0050] In this way, the anti-detachment device main body 41 is provided with a contact surface 44 that contacts the entire area of ​​the engaging and connecting corresponding portion 5 set on a portion of the side surface of the corner protective cover 21, and the size of the contact surface 44 corresponds to the size (size of the entire area) of the engaging and connecting corresponding portion 5. Therefore, the abutment surface 44 of the anti-detachment device main body 41 in the protective cover anti-detachment device 4 only needs to be sized to contact the portion corresponding to the engaging and connecting corresponding portion 5, thereby enabling the protective cover anti-detachment device 4 to be made smaller. Moreover, because the engaging and connecting corresponding portion 5 is set on a portion of the side surface of the corner protective cover 21, the protective cover anti-detachment device 4 can be easily placed on the installation surface A in a state where it contacts the engaging and connecting corresponding portion 5 simply by placing the protective cover anti-detachment device 4 in a position corresponding to the side surface of the corner protective cover 21.

[0051] 1 and 4, the anti-detachment device main body 41 is provided with a positioning portion 45 that positions the anti-detachment device main body 41 at an abutment position where it abuts against the engaging and connecting corresponding portion 5 set on a part of the side surface of the corner protective cover 21. As shown in Fig. 5, the positioning portion 45 is disposed at one end of the anti-detachment device main body 41 in the longitudinal direction, and is formed in the shape of a protrusion that protrudes from the anti-detachment device main body 41. As shown in Figs. 1 and 4, by engaging the positioning portion 45 with the end of the corner protective cover 21 in the arrangement direction C of the extension body 3, the anti-detachment device main body 41 can be freely positioned at the abutment position in the arrangement direction C of the extension body 3.

[0052] As shown in Fig. 5, fastener holes 46 are formed in the anti-detachment device main body 41. As shown in Fig. 7, by inserting fastener B such as a screw into the fastener hole 46, the anti-detachment device main body 41 can be freely fixed to the installation surface A as shown in Figs. 1 and 7.

[0053] As shown in Fig. 5, the anti-detachment device main body 41 is provided with a positioning portion 45 at one end in its length direction (left-right direction in Figs. 5C and 5D), and with an extension amount reduction portion 47 at the other end in the length direction. The extension amount reduction portion 47 is configured by a portion where the extension amount of the extension portion that extends laterally outward from the first extension portion 42 is reduced compared to other portions. As shown in Fig. 5, the extension amount reduction portion 47 is formed in an inclined shape in a plan view by reducing both the extension amount of the lateral extension on the side away from the first extension portion 42 and the extension amount in the length direction of the anti-detachment device main body 41 (left-right direction in Figs. 5C and 5D).

[0054] As shown in Fig. 2, the corner base-side engaging portions 24 and the corner cover-side engaging portions 25 are engaged and connected by engaging and connecting the corner base-side engaging portions 24 and the corner cover-side engaging portions 25 on both the left and right sides of the arrangement direction C of the extension body 3. As shown in Fig. 4, the corner cover-side engaging portions 25 are disposed at both ends of one end and the other end of the corner protective cover 21 in the arrangement direction C of the extension body 3, and the corner base-side engaging portions 24 and the corner cover-side engaging portions 25 are engaged and connected as shown in Fig. 2.

[0055] 1, 2 and 4, when the corner base-side engaging portions 24 and the corner cover-side engaging portions 25 are engaged and connected, the corner base-side engaging portions 24 and the corner cover-side engaging portions 25 are engaged and connected on both the left and right sides of one end and the other end of the corner protective cover 21 in the arrangement direction C of the extension body 3. In this way, there are a total of four points where the corner base-side engaging portions 24 and the corner cover-side engaging portions 25 are engaged and connected.

[0056] Therefore, as shown in Figure 1, at both ends of the corner protective cover 21, namely, one end and the other end, in the installation direction C of the extension body 3, protective cover anti-detachment devices 4 are arranged on the installation surface A on both the left and right sides of the installation direction C of the extension body 3, and the protective cover anti-detachment devices 4 abut against the corresponding engagement connection portions 5 at each of the four engagement connection points.

[0057] In this case, the protective cover removal stoppers 4 include a first protective cover removal stopper 4a disposed on one side in the left-right direction with respect to the arrangement direction C of the extension body 3, and a second protective cover removal stopper 4b disposed on the other side in the left-right direction with respect to the arrangement direction C of the extension body 3. The first protective cover removal stopper 4a and the second protective cover removal stopper 4b have the same configuration but differ in shape. Regarding the shape, for example, they are formed into a shape that is inverted left and right about the length direction (the arrangement direction C of the extension body 3).

[0058] 1, at one end (the end on the upper left side) of the corner protective cover 21 in the arrangement direction C of the extension body 3, the first protective cover anti-detachment device 4a is disposed on one end side (the left side in FIG. 1) with respect to the arrangement direction C of the extension body 3, and the second protective cover anti-detachment device 4b is disposed on the other end side (the right side in FIG. 1) with respect to the arrangement direction C of the extension body 3. Conversely, at the other end (the end on the lower right side) of the corner protective cover 21 in the arrangement direction C of the extension body 3, the first protective cover anti-detachment device 4a is disposed on the other end side (the upper side in FIG. 1) with respect to the arrangement direction C of the extension body 3, and the second protective cover anti-detachment device 4b is disposed on one end side (the lower side in FIG. 1) with respect to the arrangement direction C of the extension body 3. In this way, by simply providing the first protective cover anti-slip device 4a and the second protective cover anti-slip device 4b, which have symmetrical shapes, it is possible to arrange the protective cover anti-slip devices 4 on both the left and right sides of one end and the other end of the corner protective cover 21, thereby appropriately preventing the corner protective cover 21 from coming off.

[0059] 1, there are cases where one end and the other end of the corner protective cover 21 are adjacent to each other in the arrangement direction C of the extension body 3. Even in such cases, one end of the protective cover removal stopper 4 is provided with the extension amount reducing portion 47, and therefore, by arranging the protective cover removal stopper 4b and the protective cover removal stopper 4a with the extension amount reducing portions 47 adjacent to each other, it is possible to prevent the protective cover removal stoppers 4a, 4b from interfering with each other and to arrange the protective cover removal stoppers 4a, 4b in an abutting position.

[0060] In this case, the protective cover removal stoppers 4b and 4a can be disposed adjacent to each other in a crossing position. Since the extension amount reducing portions 47 are formed as flat inclined surfaces as shown in Fig. 5, when the protective cover removal stoppers 4b and 4a are disposed adjacent to each other in a crossing position as shown in Fig. 1, the extension amount reducing portions 47 form opposing flat surfaces. Even if the protective cover removal stoppers 4a and 4b come into contact with each other, they can be placed in an abutting state that restricts their movement. Therefore, the protective cover removal stoppers 4a and 4b can be appropriately disposed at abutting positions that abut the corresponding engaging / connecting portions 5.

[0061] 2, 3 and 7, in this first embodiment, the protective covers 1 of the straight line protective cover 11 and the corner protective cover 21 are disposed in a state where they are raised one level above the installation surface A via the cover spacers 6. The protective cover removal stoppers 4 are raised one level above the installation surface A via the removal stopper spacers 7, and are disposed so as to be able to abut against the engaging and connecting corresponding portions 5 set on part of the side surfaces of the corner protective cover 21.

[0062] 2, 3, and 7, the anti-detachment device spacer 7 raises the protective cover anti-detachment device 4 by the same amount or approximately the same amount as the cover spacer 6 raises the straight protective cover 11 and the corner protective cover 21. This allows the protective cover anti-detachment device 4 to be raised in a direction perpendicular to the installation surface A to a position where it will properly abut against the engaging and connecting corresponding portion 5 set on part of the side surface of the corner protective cover 21.

[0063] The anti-removal device spacer 7 has a shape similar to that of the anti-removal device main body 41 in a plan view. As shown in FIG. 7 , the anti-removal device main body 41 can be stacked on top of the anti-removal device spacer 7 in an overlapping state. The anti-removal device spacer 7 has a position-retaining protrusion 71 that protrudes upward on its top surface. In contrast, the anti-removal device main body 41 has a position-retaining recess 48 that recesses upward on its bottom surface, as shown in FIGS. 5(B) and 5(D). When the anti-removal device main body 41 is stacked on top of the anti-removal device spacer 7, the position-retaining protrusion 71 of the anti-removal device spacer 7 fits into the position-retaining recess 48 of the anti-removal device main body 41, thereby maintaining the anti-removal device spacer 7 and the anti-removal device main body 41 in an overlapping state, as shown in FIG. 8 . Since FIG. 8 shows a cross-sectional view of the anti-removal device spacer 7 with the anti-removal device main body 41 stacked on top of the anti-removal device spacer 7, other components are omitted.

[0064] When the removal stopper main body 41 is stacked on the removal stopper spacer 7, the removal stopper spacer 7 and the removal stopper main body 41 are held in an overlapping position, so that the fastener hole 46 formed in the removal stopper main body 41 communicates with the fastener hole 72 formed in the removal stopper spacer 7, as shown in Figures 7 and 8. As shown in Figure 7, by inserting fastener B such as a screw through fastener hole 46 and fastener hole 72 and fixing them to the installation surface A, the removal stopper main body 41 and the removal stopper spacer 7 can be fixed to the installation surface A by tightening them together.

[0065] Second Embodiment In the first embodiment, a case where the protective cover 1 is arranged in a curved shape on a flat installation surface A is described. In this second embodiment, a case where the protective cover 1 is arranged in a corner portion 2 having a corner portion D where a first installation surface A1 and a second installation surface A2 as the installation surface A intersect, as shown in Figure 9, is described.

[0066] 9, the first installation surface A1 and the second installation surface A2 intersect at a corner D, so that at the corner 2, the arrangement direction C1 of the extension body 3 on the first installation surface A1 and the arrangement direction C2 of the extension body 3 on the second installation surface A2 are bent at the corner D. Therefore, on the first installation surface A1, one straight line protective cover 11 is arranged along the arrangement direction C1 of the extension body 3, and on the second installation surface A2, the other straight line protective cover 11 is arranged along the arrangement direction C2 of the extension body 3. The corner protective cover 21 is formed in a bent shape spanning the first installation surface A1 and the second installation surface A2, and is bent at the corner D to connect the two straight line protective covers 11 and arranged across the first installation surface A1 and the second installation surface A2.

[0067] In this way, in the first embodiment, the protective cover 1 is disposed on one installation surface A, but in this second embodiment, the protective cover 1 is disposed across two intersecting installation surfaces A, the first installation surface A1 and the second installation surface A2. Therefore, the first and second embodiments have the same configuration, but the direction relative to the installation surface A is different.

[0068] 2 and 3, in the first embodiment, the direction perpendicular to the installation surface A is the up-down direction of the extension body 3, and the direction along the installation surface A is the left-right direction of the extension body 3. In contrast, in the second embodiment, the direction perpendicular to the installation surface A (first installation surface A1 and second installation surface A2) is the left-right direction of the extension body 3 in the first embodiment, and the direction along the installation surface A (first installation surface A1 and second installation surface A2) is the up-down direction of the extension body 3 in the first embodiment.

[0069] As described above, the first and second embodiments differ only in the orientation (posture) of the protective cover 1, and the configuration of the protective cover 1 is the same, so a description thereof will be omitted. The protective cover removal stopper 4 also has a similar configuration, so a description thereof will basically be omitted, but since the number of removal stopper spacers 7 is changed when the protective cover removal stopper 4 is disposed on the installation surface A, a description will be given only on that point.

[0070] In the first embodiment, as shown in Figures 2 and 7, the number of anti-detachment device spacers 7 used for all four protective cover anti-detachment devices 4 is the same, and the protective cover anti-detachment devices 4 are arranged on the installation surface A in a state where they are raised one level.

[0071] In contrast, in the second embodiment, the number of anti-removal device spacers 7 used for the protective cover anti-removal device 4c disposed on the first installation surface A1 is different from the number of anti-removal device spacers 7 used for the protective cover anti-removal device 4d disposed on the second installation surface A2. The protective cover anti-removal device 4c is disposed directly on the first installation surface A1 without using any anti-removal device spacers 7. The protective cover anti-removal device 4d is disposed on the installation surface A using two anti-removal device spacers 7 in a state where the protective cover anti-removal device 4d is raised two levels.

[0072] In this way, the number of anti-detachment device spacers 7 used can be changed as appropriate depending on the installation conditions, etc. Therefore, even if the installation conditions, etc. change, the number of anti-detachment device spacers 7 can be adjusted and the protective cover anti-detachment device 4 can be disposed on the installation surface A in a state where it abuts against the engaging and connecting corresponding portion 5.

[0073] Third Embodiment In the first embodiment, as shown in Figure 1, at both ends of one end and the other end of the corner protective cover 21 in the arrangement direction C of the extension body 3, protective cover fall-off prevention devices 4 are arranged on the installation surface A on both the left and right sides of the arrangement direction C of the extension body 3.

[0074] In contrast, in this third embodiment, as shown in Figure 10, at both ends of the corner protective cover 21 in the installation direction C of the extension body 3, the protective cover anti-detachment device 4 is arranged on the installation surface A only on one side in the left-right direction of the installation direction C of the extension body 3.

[0075] For example, in a curved corner protective cover 21, the outer side may be more likely to come off than the inner side of the curve. In such a case, as shown in Figure 10, protective cover fall-off stoppers 4 can be disposed on the installation surface A only on the outer side of the curve at both ends of the corner protective cover 21, one end and the other end in the installation direction C of the extension body 3.

[0076] [Fourth embodiment] In the first embodiment, a case where the protective cover 1 is arranged on a flat installation surface A is described, but in this fourth embodiment, a case where the protective cover 1 is arranged on an installation surface A with a step, as shown in Figure 11, is described.

[0077] As shown in Fig. 11, the fourth installation surface A4 on the left side is one step higher than the third installation surface A3 on the right side, resulting in an installation surface A with a step. In this case, for example, on the third installation surface A3, the corner protective cover 21 is disposed in a state where it is raised one step by the cover spacer 6, and the protective cover removal stopper 4b on one side in the left-right direction (right side) is also disposed in a state where it is raised one step by the removal stopper spacer 7. On the other hand, on the fourth installation surface A4, the protective cover removal stopper 4a on the other side in the left-right direction (left side) is disposed directly on the fourth installation surface A4 without using the removal stopper spacer 7.

[0078] In this way, even if the installation surface A has a step in the left-right direction relative to the arrangement direction C (see FIG. 1) of the extension body 3, not only can the protective cover 1 be arranged in a curved shape, but the protective cover removal stopper 4 for preventing the corner protective cover 21 of the protective cover 1 from coming off can also be appropriately arranged. By changing the removal stopper spacer 7 to be used depending on the size of the step, the protective cover removal stopper 4 can be arranged on the installation surface A in a state where it abuts against the engaging and connecting corresponding portion 5.

[0079] [Another embodiment] Other embodiments of the present invention will be described below. Note that the configurations of the embodiments described below are not limited to being applied independently, but can also be applied in combination with the configurations of other embodiments.

[0080] (1) In the above embodiment, the corner protective cover 21 is formed by combining the corner base portion 22 (corresponding to the first cover component) and the corner covering body 23 (corresponding to the second cover component), but the components used as the first cover component and the second cover component can be changed as appropriate. Furthermore, the corner protection cover is not limited to being made up of two cover components, and the number of cover components that make up the corner protection cover can be changed as appropriate.

[0081] (2) In the above embodiment, the engaging and connecting point between the corner base portion 22 and the corner covering body 23 is arranged in a portion corresponding to a part of the side surface extending in a direction perpendicular to the installation surface A, so the engaging and connecting corresponding portion 5 is set in a part of the side surface of the corner protective cover 21. However, the engaging and connecting corresponding portion may be any portion that corresponds to the engaging and connecting point between the first cover component and the second cover component that constitute the corner protective cover, and it is possible to change which part of the outer surface of the corner protective cover it is set in as appropriate. [Explanation of symbols]

[0082] 1 protective cover 2 Corner section 3 Extension body 4 Protective cover retainer 5 Engagement connection corresponding part 11 Straight line protective cover 21 Corner protection cover 22 Corner base portion (first cover component) 23 Corner cover body (second cover component) 41 Stopper body 45 Positioning part 47 Extension amount reduction section A Installation surface

Claims

1. A protective cover arrangement structure at a corner portion in which a protective cover for protecting an extension body is arranged in a bent shape on an installation surface, A curved corner protective cover connected to the straight protective cover is disposed on the installation surface of the corner portion, The corner protection cover is disposed on an installation surface in a state where the extension body is housed and covered therein by engaging and connecting a first cover component and a second cover component, an engaging and connecting corresponding portion corresponding to an engaging and connecting portion between the first cover component and the second cover component is set in a part of an outer surface portion of the corner protection cover, The protective cover arrangement structure includes a protective cover stopper disposed on the installation surface in a state of contact with the engaging and connecting corresponding portion on the outer surface of the corner protective cover.

2. The corner protection cover includes the first cover structure disposed between the extension body and the installation surface, and the second cover structure covering an area other than the area between the extension body and the installation surface, the second cover component is configured to be able to freely engage with the first cover component from an outer side to an inner side of a lateral side portion extending in a direction intersecting with the installation surface, 2. The protective cover arrangement structure according to claim 1, wherein the engaging and connecting corresponding portion is set on a part of a side surface portion of the outer surface of the corner protective cover that extends in a direction intersecting with the installation surface.

3. 3. The protective cover arrangement structure according to claim 1, wherein the protective cover stopper is provided in a state of contact with the entire area of ​​the engaging and connecting corresponding portion.

4. 3. The protective cover arrangement structure according to claim 1, wherein the protective cover stopper is provided with a positioning portion that engages with the corner protective cover and positions the protective cover at an abutting position where the protective cover abuts against the corresponding engaging and connecting portion.

5. A protective cover arrangement structure as described in claim 1 or 2, wherein one end of the protective cover anti-detachment device is provided with an extension amount reduction portion that reduces the extension amount of the extension portion that extends laterally outward more than other portions.

6. A protective cover removal stopper that prevents a curved corner protective cover connected to a straight protective cover from coming off, The corner protection cover is disposed on an installation surface in a state where the extension body is housed and covered therein by engaging and connecting a first cover component and a second cover component, an engaging and connecting corresponding portion corresponding to an engaging and connecting portion between the first cover component and the second cover component is set on a part of an outer surface portion of the corner protection cover; The protective cover removal stopper includes a removal stopper body disposed on the installation surface in a state of contact with the engaging and connecting corresponding portion on the outer surface of the corner protective cover.

Images